The SEDRIS Data Representation Model
APPENDIX C - Types
SE_Image_Scan_Direction
/*
 * ENUM: SE_Image_Scan_Direction
 *
 *   This data type specifies the manner in which an image layer is
 *   to be scanned.
 *
 *                              Minor Scan   Major Scan      Image Origin
 *                              -----------------------------------------
 *   SE_IMAGSCANDIR_RIGHT_UP   left-right   bottom-up       lower left
 *   SE_IMAGSCANDIR_RIGHT_DOWN left-right   top-down        upper left
 *   SE_IMAGSCANDIR_DOWN_RIGHT top-down     left-right      upper left
 *   SE_IMAGSCANDIR_DOWN_LEFT  top-down     right-left      upper right
 *
 *   SE_IMAGSCANDIR_LEFT_UP    right-left   bottom-up       lower right
 *   SE_IMAGSCANDIR_LEFT_DOWN  right-left   top-down        upper right
 *   SE_IMAGSCANDIR_UP_RIGHT   bottom-up    left-right      lower left
 *   SE_IMAGSCANDIR_UP_LEFT    bottom-up    right-left      lower right
 */
typedef enum
{
SE_IMAGSCANDIR_RIGHT_UP,1
SE_IMAGSCANDIR_RIGHT_DOWN,2
SE_IMAGSCANDIR_DOWN_RIGHT,3
SE_IMAGSCANDIR_DOWN_LEFT,4
SE_IMAGSCANDIR_LEFT_UP,5
SE_IMAGSCANDIR_LEFT_DOWN,6
SE_IMAGSCANDIR_UP_RIGHT,7
SE_IMAGSCANDIR_UP_LEFT8
} SE_Image_Scan_Direction;


Enumerant Notes

1 The <Image> instance's origin as at the lower left corner. The minor scan direction is from left to right, while the major scan direction is bottom-up.

2 The <Image> instance's origin as at the lower left corner. The minor scan direction is from left to right, while the major scan direction is top-down.

3 The <Image> instance's origin as at the lower left corner. The minor scan direction is top-down, while the major scan direction is from left to right.

4 The <Image> instance's origin as at the lower left corner. The minor scan direction is top-down, while the major scan direction is from right to left.

5 The <Image> instance's origin as at the lower left corner. The minor scan direction is from right to left, while the major scan direction is bottom-up.

6 The <Image> instance's origin as at the lower left corner. The minor scan direction is from right to left, while the major scan direction is top-down.

7 The <Image> instance's origin as at the lower left corner. The minor scan direction is bottom-up, while the major scan direction is from left to right.

8 The <Image> instance's origin as at the lower left corner. The minor scan direction is bottom-up, while the major scan direction is from right to left.




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